Manchester United are interested in signing Robert Lewandowski from Barcelona.The 37-year-old will be a free agent in the summer, and he could prove to be a useful short-term acquisition for Manchester United.They need more depth in the attacking unit. They have signed Benjamin Sesko, but the Slovenian International needs more support in the attack. Signing an experienced attacker like Lewandowski could be a masterstroke. He could help shoulder the scoring burden at Manchester United and mentor Sesko, as per reports from Spain. Signing a player of his quality for free would be a masterstroke.The player has 17 goals this season, and he has the technical attributes for Premier League football as well. Manchester United could use his experience, leadership and finishing ability in the final third. They are looking to build a team capable of competing with elite clubs once again. Signing the Polish international could be a wise move.The player has also been linked with a move to Manchester United. It remains to be seen whether he is prepared to take on another challenge at this stage of his career.Lewandowski is one of the finest strikers of his generation, and the opportunity to showcase his qualities in the Premier League could be tempting for him.Meanwhile, Manchester United are expected to sell Joshua Zirkzee in the summer. The Netherlands International has been underwhelming, and he has been linked with a return to Italy. They will need to replace him properly, and signing the Barcelona striker would make a lot of sense.Manchester United need to improve multiple areas of their team during the summer transfer window, and adding a free agent to the attacking unit could be ideal.The post Man United consider signing 17-goal superstar to mentor next-gen stars appeared first on CaughtOffside.